public String getColumnText(Object element, int columnIndex) {
      Variable vd = (Variable) element;

      if (columnIndex == 0) {
        return vd.getName();
      } else if (columnIndex == 1) {
        StringBuffer buf = new StringBuffer();
        buf.append(vd.getType().getName());
        if (vd.getType().hasBaseType()) // is array or map
        {
          buf.append(" of ");
          buf.append(vd.getType().getBaseTypeName());
        }
        return buf.toString();
      }

      return "N/A";
    }